9. Shallow/Near-Surface Structural Applications
Contribution of Ground Magnetic Data in Revealing Subsurface Structural Features of Wadi El-Shallal Area, Southwestern Sinai, Egypt
El Sayed M. El- Kattan(1), Mohamed R. Soliman(2), Adel F. Khalil(1), Abdelmohsen G. Gharieb(1) and Mohamed A. Shaheen(1)
(1) Nuclear Materials Authority, Egypt. (2) Department of Geology, Faculty of Science, Tanta University., Egypt.
Abstract
Wadi El-Shallal area lies at the southwestern part of Sinai between longitudes 33° 17` 52`` and 33° 18` 31`` E., and latitudes 28° 56` 20``and 29° 55` 54`` N with an area of about 1.44 km2. The study aims to identify and interpret the subsurface structures and depth to the near surface basement rocks (Basaltic sheets) that capped the Umm Bogma Formation. Magnetic data was reduced to north magnetic pole (RTP) and then separated into regional and residual component using power spectrum technique. In addition, upward continuation, Euler deconvolution, second vertical derivative were applied to measure and identify the depth to the basement and different parameters of subsurface structures of the area. The results revealed that the area has been affected by several tectonic movements at different geological times yielding subsurface faults having N-S, NNE-SSW, NE-SW, E-W, WNW-ESE and NNW-SSE trends. The Basement configuration surface seems to form successive horsts and grabens having N-S trend at the southern part. Moreover, two relative large basins were detected, one at the north central part and the other at the east central part. The calculated depth to the Basement surface ranges between 70 and 125m.
Last modified: Fri May 19 15:25:46 2006